Would the Army Lose a 'Tank War' vs. Russia or China?

Fact: America's M1 Abrams tanks, despite upgrades, are getting a little old. Would the Army Lose a 'Tank War' vs. Russia or China?Repeated US Army attempts to replace the Abrams were cut due to cost blowouts, and the latest major update for the M1, the M1A3, failed to materialize.The most recent attempt, the next-generation combat vehicle, remains in the conceptual stage, and is primarily aimed at replacing the Bradley fighting vehicle, not the Abrams.